JP2014139776A - Display controller, display control method, and program - Google Patents

Abstract

A display device having a touch UI corrects or suppresses the direction of movement of a display position during a swipe operation. However, it may be inconvenient because it may be corrected and suppressed at an undesired timing.
The movement of the display position is suppressed according to the attribute of the displayed object.
[Selection] Figure 6

Description

  The present invention relates to a display control device, a display control method, and a program.

  Conventionally, when displaying a page image of a document having a large number of pixels on a relatively small display device such as a personal computer, a PDA, a smartphone, or a tablet, a part of the page image is sequentially displayed. Generally, a page image is composed of a plurality of objects such as text, a headline, a figure, a photo, and a table. In order to read the document along such an object, the user needs to repeatedly move (scroll) the display position and perform enlargement / reduction operations so that the desired range of the page is sequentially displayed on the display device.

  Such movement of the display position and enlargement / reduction operation are performed by operating an operation input device such as a switch, a wheel, a trackball, a joystick, or a touch screen. Particularly in recent years, devices using high-precision touch screens have become widespread. In such an apparatus, a direct operation (direct manipulation) such as movement of a display position in any direction of vertical, horizontal, and diagonal by swipe operation or flick operation, and enlargement / reduction by pinch-out and pinch-in operation is provided.

  Further, Patent Document 1 discloses a technique for correcting the direction of movement of a display position by a swipe operation in a horizontal direction or a vertical direction. A shift in the swipe operation in the horizontal direction or the vertical direction caused by the individual difference of the operator or the operation position is learned and corrected and reflected in the movement operation of the display position.

  In addition, in a Web browser installed in Apple's iPad (registered trademark) or iPhone (registered trademark), a technique is implemented in which the movement of the display position due to the swipe operation is fixed and suppressed in the horizontal direction or the vertical direction. In other words, the initial movement of the swipe operation is accurately controlled in the horizontal direction or the vertical direction, so that the movement of the display position by the subsequent swipe operation until the finger is released is suppressed only in the horizontal direction or only in the vertical direction. is there. For example, when reading text, the display position should be moved along the text composition direction. Here, the composition direction is a direction that proceeds from left to right in the horizontal direction in the case of Japanese horizontal writing such as text. According to the technique for correcting and suppressing the movement of the display position described above, it is convenient in such a case because the display position is prevented from being displaced in a direction perpendicular to the desired direction (assembly direction).

JP 2011-70554 A

  However, in the technique of Patent Document 1 and the technique implemented in iPad (registered trademark) or iPhone (registered trademark), correction or suppression of movement of the display position is activated regardless of the type of object. For example, when the object displayed on the display device is a photograph containing a person or landscape, the display position should be moved in accordance with the movement of the finger that instructs the swipe operation. However, there are cases where correction or suppression is activated unintentionally by the user, in which case the display position cannot be moved in a desired direction.

  The display control apparatus according to the present invention includes control means for controlling movement of a display position of an image indicated by the image data based on an attribute of an object included in the image data.

  According to the present invention, it is possible to perform an appropriate display position movement process according to an object to be displayed.

It is a block diagram which shows the structural example of a portable information terminal. It is a block diagram which shows the structural concept of an application program. It is the conceptual diagram which showed the name of a gesture event, and the information transmitted to a gesture event process part, when each event generate | occur | produces. It is the flowchart which showed the procedure of the initial display process of touch UI. It is a screen figure which shows the example of a display of touch UI of a portable information terminal. It is the flowchart which showed the procedure of the movement process of the display position of a display control apparatus. It is a flowchart which shows the procedure of a character attribute object movement suppression determination process. It is a flowchart which shows the procedure of a table attribute object movement suppression determination process. It is a flowchart which shows the procedure of a graphic attribute object movement suppression determination process. It is the figure which showed an example of the bar graph and band graph as an object of a graphic attribute. It is a flowchart which shows the procedure of a movement range restriction | limiting process. It is a screen figure which shows the example of a display of touch UI in the partial region display mode of a portable information terminal. It is a screen figure which shows the example of a display of touch UI of a portable information terminal. It is a screen figure which shows the example of a display of touch UI of a portable information terminal. It is the flowchart which showed the procedure of the movement process of a display position. It is a screen figure which shows the example of a display of touch UI of a portable information terminal.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

  FIG. 1 is a block diagram illustrating a configuration example of the portable information terminal 100. In this embodiment, a portable information terminal will be described as an example of a display control device. However, the present invention may be applied to a device having a relatively small display screen such as an MFP (Multifunction Peripheral). In addition, even in a general-purpose computer having a relatively large display screen, there may be a use case in which the display position of the page image in the display screen needs to be moved. In such a case, the display control device may be a general-purpose computer.

  The portable information terminal 100 includes a main board 150, an LCD 101, a touch panel 102, and a button device 103. The LCD 101 and the touch panel 102 are collectively referred to as a touch UI 104.

  The main board 150 includes a CPU 105, a wireless LAN module 106, a power controller 107, a display controller (DISPC) 108, and a panel controller (PANELC) 109. The main board 150 includes a ROM 110, a RAM 111, a secondary battery 112, and a timer 113. Each module is connected by a bus (not shown).

  The CPU 105 is a controller for controlling the entire portable information terminal 100. The CPU 105 controls each module connected to the bus. The CPU 105 starts an OS (operating system) by a boot program stored in the ROM 110. On this OS, an application program that is also stored in the ROM 110 is executed. This application program is a program for browsing the contents of application image data. The application image data is image data to be displayed as described in this embodiment. The application image data includes various object data. Note that information indicating the type of an object to be described later may be included in the application image data, or may be acquired by analyzing the application image data.

  The RAM 111 functions as a main memory and work area for the CPU 105, a video image area displayed on the LCD 101, and a storage area for application image data.

  The display controller (DISPC) 108 switches the video image output developed in the RAM 111 at high speed and outputs a synchronization signal to the LCD 101 in response to a request from the CPU 105. As a result, the video image in the RAM 111 is output to the LCD 101 in synchronization with the synchronization signal from the DISPC 108, and the image is displayed on the LCD 101.

  A panel controller (PANELC) 109 controls the touch panel 102 and the button device 103 in response to a request from the CPU 105. With this control, the CPU 105 is notified of the touch position on the touch panel 102 (a finger or an indicator such as a stylus pen approaches or touches the touch panel 102), the pressed key code on the button device 103, and the like. The touch position includes a coordinate value (hereinafter, “X coordinate”) indicating the absolute position in the horizontal direction of the touch panel 102 and a coordinate value (hereinafter, “Y coordinate”) indicating the absolute position in the vertical direction. The touch panel 102 can detect pressing at a plurality of places, and in this case, the CPU 105 is notified of pressing position information for the number of touch input positions.

  Based on the control of the CPU 105, the wireless LAN module 106 establishes wireless communication with a wireless LAN module on a wireless access point (not shown) connected to the LAN, and mediates communication with the portable information terminal 100. The wireless LAN module 106 includes, for example, IEEE 802.11b.

  The power controller 107 is connected to an external power source (not shown) and receives power. Thus, power is supplied to the entire portable information terminal 100 while charging the secondary battery 112 connected to the power supply controller 107. When power is not supplied from the external power source by the power controller 107, the secondary battery 112 supplies power to the entire portable information terminal 100.

  The timer 113 generates a timer interrupt to a gesture event generating unit 201 described later based on the control of the CPU 105.

  Next, an application program executed by the CPU 105 of the portable information terminal 100 will be described. FIG. 2 is a block diagram showing a configuration concept of an application program executed by the CPU 105.

  The CPU 105 can read an application program from the ROM 110, store it in the RAM 111, and execute it. Each unit included in the application program described below is realized by a combination of the following configurations. That is, for example, the CPU 105 and the RAM 111 are areas for storing application programs, and the RAM 111 is an area for storing information (calculation results, etc.) obtained by the CPU 105 executing the application programs.

  The gesture event generation unit 201 receives a touch input from the touch panel 102 via the panel controller 109 and generates various gesture events described later. The gesture event generating unit 201 transmits the generated gesture event to the gesture event processing unit 202.

  The gesture event processing unit 202 receives the gesture event generated by the gesture event generation unit 201 and executes processing according to each gesture event and application image data. The gesture event processing unit 202 includes a display mode processing unit 203, a display position movement processing unit 204, and an enlargement / reduction processing unit 205.

  The display mode processing unit 203 switches display modes when displaying application image data on the touch UI 104 and selects an object to be displayed.

  The display position movement processing unit 204 performs processing for a swipe operation performed on the touch panel 102 by the user.

  The enlargement / reduction processing unit 205 performs processing for a pinch-in operation and a pinch-out operation performed on the touch panel 102 by the user. In response to a pinch-in operation or a pinch-out operation, the display content is enlarged and reduced on the touch UI 104 and updated.

  Next, a gesture event generated by the gesture event generation unit 201 will be described with reference to FIG. FIG. 3 is a conceptual diagram showing the names of gesture events and information to be transmitted to the gesture event processing unit 202 when each event occurs.

  301 is a touch press event, and transmits the coordinate value of the touch input position to the touch panel 102, and the number of touch coordinates. The touch coordinates are a set of coordinate values represented by an X coordinate and a Y coordinate indicating the latest touch position. The number of touch coordinates indicates the number of touch positions. The touch coordinates are updated when an interrupt from the timer 113 is generated when the user's finger touches the touch panel 102, when the finger moves, or when the finger is released.

  Reference numeral 302 denotes a swipe event, which transmits the coordinate value of the latest touch coordinate and the movement distance calculated from the difference between the latest coordinate value and the previous coordinate value. Here, “swipe” refers to an operation of moving (sliding) in one direction while keeping the fingertip in contact with the touch panel 102.

  Reference numeral 303 denotes a pinch-in event, which transmits the pinch-in reduction ratio calculated from the latest center coordinate value of the two touch coordinates and the reduction distance of the straight line connecting the two touch coordinates. Here, pinch-in refers to an operation in which two fingertips are brought close to each other (pinch) while being in contact with the touch panel 102.

  Reference numeral 304 denotes a pinch-out event, which transmits the center coordinate value of the latest two touch coordinates and the pinch-out enlargement ratio calculated from the enlargement distance of the straight line connecting the two touch coordinates. Here, “pinch out” refers to an operation in which two fingertips are kept away from each other while touching the touch panel 102 (such as spreading fingers).

  Reference numeral 305 denotes a two-point swipe event that transmits the latest two touch coordinate values and the movement distance calculated from the difference between the two latest touch coordinate values and the previous coordinate value. The two-point swipe event is generated when the touch coordinates of the two points are moving in the same direction.

  Reference numeral 306 denotes a rotate event, which is a rotation center coordinate value calculated from the coordinate values of the latest two touch coordinates and a rotation angle calculated from the latest coordinate value and the immediately preceding coordinate value of the two touch coordinates. Send. Here, “rotate” refers to an operation of rotating two fingertips with respect to the touch panel 102 while keeping the two fingertips in contact with the touch panel 102.

  Reference numeral 307 denotes a flick event, which transmits the coordinate value of the latest touch coordinates and the moving speed of the finger calculated from the latest coordinate value and the previous coordinate value. Here, “flick” refers to an operation of releasing a finger during swiping (like repelling a finger).

  Reference numeral 308 denotes a touch release event, which transmits the coordinate value and the number of coordinates of the latest touch coordinates when the user's finger is released from the touch panel 102.

  Reference numeral 309 denotes a double tap event, which transmits the coordinate value of the latest touch coordinate. Here, the double tap is a set of operations (a single tap event described later) that includes the operation of bringing a finger into contact with the touch panel 102 and the operation of releasing the finger within a predetermined time. This is an operation that is performed twice in succession.

  310 is a single tap event, and the coordinate value of the latest touch coordinate is transmitted. Here, as described above, the single tap refers to an operation of releasing a finger within a predetermined time from an operation of bringing a finger into contact with the touch panel 102.

  311 is a long tap event, and the coordinate value of the latest touch coordinate is transmitted. Here, the long tap refers to an operation of releasing the finger from the touch panel after a predetermined time or more has elapsed since the operation of bringing the finger into contact with the touch panel 102.

  312 is a touch and hold event, and the coordinate value of the latest touch coordinate is transmitted. Here, the touch and hold event refers to an operation in which a predetermined time or more elapses without moving even after the user's finger touches the touch panel 102.

  Here, a case where a finger is used is shown as an example of the user's touch input, but the touch input may be input with a stylus pen or the like.

  Now, how to display the contents of the application image data on the touch UI 104 will be described.

  The initial display processing of the contents of the application image data will be described with reference to FIGS. FIG. 4 is a flowchart showing the procedure of the initial display process of the contents of the application image data. This flowchart is realized by the CPU 105 executing the application program as the display mode processing unit 203. When the display mode processing unit 203 receives application image data from an external separate device (here, MFP) via the wireless LAN module 106, the display mode processing unit 203 starts this processing.

  First, in step S <b> 401, the display mode processing unit 203 stores the received application image data in the RAM 111.

  In step S <b> 402, the display mode processing unit 203 reads the first page in the application image data stored in the RAM 111 and the objects included therein.

  In step S403, the display mode processing unit 203 generates display image data for all the objects of characters, photos, and graphics included in the read first page according to the coordinates, width, and height of the start point of the object. Then, the display image data is written in the video image area of the RAM 111, and the display content is updated on the touch UI 104 via the display controller 108. In the following description, the processing from the generation of the display image data described above until the display content is updated on the touch UI 104 may be simply described as “the display content is updated on the touch panel 102”.

  FIG. 5 is a screen diagram illustrating a display example of the touch UI 104 of the portable information terminal 100. When the display mode processing unit 203 finishes executing step S403, the content of the first page is displayed on the touch UI 104 as shown in FIG. At this time, the display mode processing unit 203 determines the display magnification of the first page according to the width of the touch UI 104. The display mode processing unit 203 displays the start point of the page 500 at the coordinates on the touch UI 104 so that the page is displayed at the center of the touch UI 104 when the page height when enlarged or reduced to the display magnification is smaller than the touch UI 104. To decide. When the height of the page 500 when enlarged or reduced to the display magnification is larger than the touch UI 104, the start point of the page 500 is aligned with the start point of the touch UI 104 (for example, the upper left of the screen) in the coordinates on the touch UI 104. decide.

Here, each object included in the page 500 will be described with reference to FIG.
An object 504 is a character attribute object whose writing direction is horizontal writing.
An object 505 is a character attribute object whose composition direction is vertical writing.
An object 506 is a graphic attribute object.
An object 507 is a table object having a header in the first row and first column.
The object 508 is a graphic attribute object which is a bar graph.
An object 509 is a photograph attribute object.
Note that the broken lines surrounding each object in FIG. 5 are drawn for easy understanding, and do not actually exist on the page 500.

  In the above, the state in which the content of the application image data is displayed on the touch UI 104 has been described. From now on, the manner in which the display position is moved in response to a swipe operation on the display content will be described. In the following description, processing according to the swipe operation will be described. However, the present embodiment is not limited to the swipe operation. For example, any operation described above may be used as long as the operation is an instruction to move the display position, such as a flick operation. In the present embodiment, control for suppressing the movement of the display position of the image corresponding to the object is performed according to the attribute of the object displayed on the touch UI 104.

  Next, display position movement processing in the present embodiment will be described with reference to FIG. FIG. 6 is a flowchart showing the procedure of display position movement processing in the present embodiment. This flowchart is realized by the CPU 105 executing the application program as the display position movement processing unit 204. The display position movement processing unit 204 detects a touch operation, a swipe operation, or a touch release operation via the touch UI 104, and starts this processing.

  First, in step S600, the display position movement processing unit 204 determines the type of event. When performing the swipe operation, the user first touches the touch UI 104. As a result, the gesture event generating unit 201 generates a touch press event and notifies the gesture event processing unit 202 of it. Therefore, in this case, in step S600, the display position movement processing unit 204 determines that the event is a touch press event, and the process proceeds to step S601. The display position movement processing unit performs the processing after step S601 as will be described later. After touching, the user slides his / her finger while touching the touch UI 104. Thereby, the gesture event generating unit 201 generates a swipe event and notifies the gesture event processing unit 202 of the swipe event. Therefore, in this case, in step S600, the display position movement processing unit 204 determines that the event is a swipe event, and the process proceeds to step S609. The display position movement processing unit 204 performs processing from step S609 onward as described later. Finally, the user releases his / her finger from the touch UI 104 when finishing the swipe operation. As a result, the gesture event generating unit 201 generates a touch release event and notifies the gesture event processing unit 202 of it. Therefore, in this case, in step S600, the display position movement processing unit 204 determines that the event is a touch release event, and the process proceeds to step S621.

  First, the processing when it is determined in step S600 that the event is a touch press event will be described.

  In step S601, the display position movement processing unit 204 performs a touch operation on the operation button area such as the mode switching button, the next button, and the previous button from the coordinate value of the touch input position of the touch pressing event. It is determined whether or not. If the coordinate value of the touch input position is not included in the operation button area, it is determined that the touch operation is not performed on the operation button, and the process proceeds to step S602. If it is determined that this is not the case, that is, if it is determined that the coordinate value of the touch input position is the region of the operation button, the process is terminated.

  In step S602, the display position movement processing unit 204 determines a reference object. Here, the reference object is an object in the page that is currently being read, and is an object used as a reference for determining a method for suppressing the movement of the display position. The display position movement processing unit 204 determines the reference object as follows. For example, the area ratio of each object that is an area in the page and is displayed in the area displayed on the touch UI 104 is calculated, and the object having the largest occupied area (most displayed) is determined as the reference object. be able to. Alternatively, an object having a rectangular block including the upper left end point of the area displayed on the touch UI 104 or the center point of the area rectangle may be determined as the reference object. Further, an object having a rectangular block including a touch position of a touch operation executed by the user prior to the swipe operation may be determined as the reference object. As described above, the reference object can be determined. In this embodiment, the first method (determined by the area ratio of each object in the display area) is used.

  In step S603, the display position movement processing unit 204 determines whether the attribute of the reference object determined in step S602 is a character attribute. When it determines with it being a character attribute, it changes to step S604, and when it determines with it not being so, it changes to step S605. Information indicating the attribute of the object is included in the application image data. Alternatively, the display position movement processing unit 204 may determine application attributes by analyzing application image data. A known technique can be applied to the method for analyzing the attribute of the object. For example, the image data can be divided into rectangular blocks of a predetermined size, and the attributes of the object can be specified based on the size and shape of the rectangular block. For example, a rectangular block object having an aspect ratio close to 1 and a fixed size can be specified as a character object. Further, an object of a flat pixel block or a black pixel block having a certain size and including a square white pixel block in a well-aligned manner can be specified as a graphic object. Further, among graphic objects, an object including character attributes within a certain range can be specified as a table object.

  In step S604, the display position movement processing unit 204 executes a character attribute object movement suppression determination process. This is a process of determining a method for suppressing the movement of the display position with reference to the character attribute object. Details will be described later.

  In step S605, the display position movement processing unit 204 determines whether or not the attribute of the reference object determined in step S602 is a table attribute. If it is determined that the attribute is a table attribute, the process proceeds to step S606. If it is not determined, the process proceeds to step S607.

  In step S606, the display position movement processing unit 204 executes a table attribute object movement suppression determination process. This is a process of determining a method for suppressing the movement of the display position based on the table attribute object. Details will be described later.

  In step S607, the display position movement processing unit 204 determines whether the attribute of the reference object determined in step S602 is a graphic attribute. If it is determined that the attribute is a graphic attribute, the process proceeds to step S608; otherwise, the process ends. That is, when it is determined that the attribute is other than the character attribute, the graphic attribute, and the table attribute, the process ends.

  In step S608, the display position movement processing unit 204 executes graphic attribute object movement suppression determination processing. This is a process for determining a method for suppressing the movement of the display position with reference to an object having a graphic attribute. Details will be described later.

In step S604, step S606, and step S608, the method for suppressing the movement of the display position can be determined as one of the following.
-Only the horizontal direction is suppressed, which suppresses the movement of the display position only in the horizontal direction. That is, the movement in the vertical direction is permitted and the movement in the horizontal direction is prohibited.
-Only the vertical direction is suppressed, which suppresses the movement of the display position only in the vertical direction. That is, the movement in the horizontal direction is permitted and the movement in the vertical direction is prohibited.
Bidirectional suppression, which suppresses movement of the display position in either the horizontal direction or the vertical direction, and which direction is to be suppressed is determined in step S610 described later.

  The display position movement processing unit 204 stores and manages the determined display position movement suppression method in the RAM 111.

  Next, a process when it is determined in step S600 that the event is a swipe event will be described.

  In step S609, the display position movement processing unit 204 determines whether or not the first swipe event has been received since the touch press event was received, and the display position movement suppression method has been determined to be bi-directional suppression. If it is determined that this is the case, the process proceeds to step S610. If it is not, the process proceeds to step S613.

  When the first swipe event is received and the display position movement suppression method is determined to be bi-directional suppression, in step S610, the display position movement processing unit 204 analyzes the movement amount included in the received swipe event. To do. That is, the display position movement processing unit 204 performs vector decomposition into horizontal and vertical components based on the latest and previous touch coordinate positions included in the received swipe event. Then, the magnitudes of the bidirectional components are compared. If it is determined that the horizontal component is larger, the process proceeds to step S611. If it is not determined, the process proceeds to step S612.

  In step S611, since the horizontal component is larger than the vertical component, the display position movement processing unit 204 determines that the display position movement suppression method is bi-directional suppression, and the vertical direction is suppressed in this swipe operation. . That is, in step S611, the display position movement processing unit 204 determines that the movement in the horizontal direction is permitted and the movement in the vertical direction is prohibited. On the other hand, in step S612, since the vertical component is larger than the horizontal component, it is determined that the display position movement suppression method is bi-directional suppression, and the horizontal direction is suppressed in this swipe operation. Then, the determined direction of suppression is stored in the RAM 111 and managed.

  When the second and subsequent swipe events are received, it is determined No in step S609, and thus steps S610 to S612 are not executed. However, the movement of the display position is controlled with reference to the direction of suppression stored in the RAM 111 as a result of steps S610 to S612 executed previously. In step S604, step S606, and step S608, when it is determined that only the horizontal direction is suppressed or only the vertical direction is suppressed, the determined suppression method is stored in the RAM 111 in this step. Therefore, when it is the first time and the bi-directional suppression is not performed, and when the second and subsequent swipe events are received, the movement of the display position is controlled with reference to the direction of suppression stored in the RAM. This is the process in the next step S613.

  In step S613, the display position movement processing unit 204 determines whether a suppression method has been determined in the processes so far. This determination is made by confirming whether or not the determined suppression method is recorded in the RAM 111. If it is determined that the suppression method has been determined, the display position movement processing unit 204 proceeds to step S614. If it is determined that the suppression method has not been determined, the display position movement processing unit 204 proceeds to step S618.

  In step S614, the display position movement processing unit 204 calculates an integrated value of components in a direction in which the movement of the display position is suppressed with respect to the movement amount included in the swipe event. The amount of movement included in the swipe event is a vector for the component in the horizontal direction (X-axis direction) and the component in the vertical direction (Y-axis direction) from the latest touch position coordinates and the previous touch position coordinates included in the swipe event. Can be disassembled. Of the components in both directions obtained by vector decomposition, the value of the direction to be suppressed is added each time a swipe event arrives and stored in the RAM 111.

  In step S615, the display position movement processing unit 204 compares a predetermined threshold value (release threshold value) with the integrated value calculated in step S614 in advance. This release threshold value can be determined not as a user input error but as an instruction to move in the suppression direction accurately, for example, a value that is 1/3 of the horizontal / vertical width of the display area of the touch UI 104. The value should be determined. When it is determined that the integrated value of the movement amount in the suppression direction is larger than the release threshold, the process proceeds to step S616, and when it is determined to be small, the process proceeds to step S617.

  In step S616, the display position movement processing unit 204 determines to move in the display position movement suppression direction by the integrated value calculated in step S613. In this embodiment, the movement of the display position is suppressed according to the attribute of the object. For this reason, the display position cannot be moved in the suppressed direction. Therefore, when the user gives a movement instruction that exceeds the release threshold for the direction to be suppressed, the movement in the suppression direction is also performed exceptionally. Step S614, step S615, and step S616 realize exceptional movement in the restraining direction. In step S616, the display position movement processing unit 204 initializes the integrated value of the amount of movement in the suppression direction to zero.

  In step S617, the display position movement processing unit 204 moves the page start point according to the suppression method, and moves the display position. More specifically, the following processing is performed. Based on the latest touch coordinate position and the previous touch coordinate position included in the swipe event, the amount of movement included in the swipe event is vector-decomposed into a horizontal component and a vertical component. And the direction component to suppress is correct | amended to 0. Further, in step S616, when it is determined that the movement is also performed in the suppression direction according to the integrated value calculated in step S614, the integrated value is added to the component in the suppression direction. The X and Y coordinates of the page start point are moved according to the vector obtained as described above.

  If it is determined in step S613 that the suppression method has not been determined, in step S618, the display position movement processing unit 204 moves the page start point and moves the display position according to the content of the swipe event.

  In step S619, the display position movement processing unit 204 executes a movement range restriction process. This is a process of preferably correcting the display position in the partial area display mode. Details of the partial area display mode and the movement range restriction process will be described later.

  Finally, in step S620, the display position movement processing unit 204 causes the touch UI 104 to update the display content according to the start point of the page determined in the above processing.

  On the other hand, if it is determined in step S600 that the event is a touch release event, the following processing is performed.

  In step S621, the display position movement processing unit 204 deletes the information related to the display position movement suppression method stored in the RAM 111. Specifically, the display position movement processing unit 204 deletes the information stored in the RAM 111 in step S604, step S606, step S608, step S611, and step S612. Further, the integrated value of the amount of movement in the suppression direction calculated in step S614 and stored in the RAM 111 is also deleted.

  In this embodiment, when the user touches the touch UI 104 and performs a swipe operation, the portable information terminal 100 displays a horizontal scroll bar at the lower end of the screen and a vertical scroll bar at the right end of the screen. Can do. At this time, the display mode of the scroll bars at the right end and the left end of the screen can be changed according to the direction in which the movement of the display position determined in this process is suppressed. The scroll bar may be displayed at the upper end or the left end of the screen. In the present embodiment, for example, the scroll bar corresponding to the direction to be suppressed is drawn with a translucent color having high transparency, and the direction not to be suppressed is drawn with an opaque color. In step S620, the display content can be updated on the touch UI 104 to display the scroll bar as described above. Note that the method of controlling the display method of the touch UI 104 according to the direction in which the movement of the display position is suppressed is not limited to the method of this example, and another method may be used.

  Next, the character attribute object movement suppression determination process shown in S604 of FIG. 6 in the present embodiment will be described with reference to FIG. FIG. 7 is a flowchart showing the procedure of the character attribute object movement suppression determination process. This flowchart is realized by the CPU 105 executing the application program as the display position movement processing unit 204.

  In step S700, the display position movement processing unit 204 acquires the set direction of the object that is the character attribute. The text composition direction is included in the application image data. Further, the application image data may be analyzed to acquire the text composition direction. For example, horizontal / vertical projections of pixel values are taken for specific areas among objects having character attributes. The projection variance is then evaluated. When the horizontal projection variance is large, the writing direction can be acquired as horizontal writing, and when the vertical projection variance is large, the writing direction can be acquired as vertical writing.

  In step S <b> 701, the display position movement processing unit 204 determines the text composition direction. If the text composition direction is determined to be horizontal writing, the process proceeds to step S <b> 702. The process proceeds to S703.

  In step S702, the display position movement processing unit 204 determines that the display position movement suppression method is suppression only in the vertical direction. Since the object to be processed is a horizontally written character, the display position is moved in the horizontal direction, which is the character assembling direction, so that the vertical direction is not displaced.

  On the other hand, in step S703, the display position movement processing unit 204 determines that the method for suppressing the movement of the display position is to suppress only the horizontal direction. In this case, since the object to be processed is a vertically written character, the display position is moved in the vertical direction, which is the character assembling direction, so that no deviation occurs in the horizontal direction.

  Next, the table attribute object movement suppression determination process shown in S606 of FIG. 6 in the present embodiment will be described with reference to FIG. FIG. 8 is a flowchart showing the procedure of the table attribute object movement suppression determination process. This flowchart is realized by the CPU 105 executing the application program as the display position movement processing unit 204.

  In step S800, the display position movement processing unit 204 detects the header position. The header position is, for example, whether the font type of the characters in the first row (top row) and first column (leftmost column) is bold, or the approximate curve of the vector data when vectorized It can be detected by the thickness, the thickness of the table ruled line, the background color of each cell of the table, and the like.

  In step S801, the display position movement processing unit 204 determines whether or not the header is only in the first line. If it is determined that the current position is only in the first row, the process proceeds to step S802. If it is not determined, the process proceeds to step S803.

  In step S <b> 802, the display position movement processing unit 204 determines whether or not the first line as a header is displayed on the touch UI 104. For example, the display position movement processing unit 204 sets the first line as a header on the touch UI 104 based on the start point of the current page, the block rectangular area of the table attribute object to be processed, and the position of the first line in the area. It is determined whether it is displayed. When it is determined that it is not displayed, that is, when the header is only the first line, but the first line is not displayed, the process proceeds to step S806, and the vertical line is the same as in step S702 shown in FIG. Only the direction is determined to be suppressed. This assumes that when there is a header only on the first line, when referring to the table object, the contents of the header of the first line are first checked and then read along that line. . That is, the display position is moved along the row direction (horizontal direction) so as not to cause a shift in the vertical direction. On the other hand, if it is determined in step S802 that the top row is displayed, the process proceeds to step S805.

  In step S803, the display position movement processing unit 204 determines whether the header is only in the first column. If it is determined that it is only in the first column, the process proceeds to step S804. If it is not determined, the process proceeds to step S805.

  In step S804, the display position movement processing unit 204 touches the first column, which is the header, based on the start point of the current page, the block rectangular area of the table attribute object to be processed, and the position of the first column in the area. It is determined whether it is displayed on the UI 104. When it is determined that it is not displayed, that is, when the header is only the first column, but the first column is not displayed, the process proceeds to step S807, and in the same way as step S703 shown in FIG. Only the direction is determined to be suppressed. This assumes that when there is a header only in the first column, when referring to the table object, the contents of the header of the first column are first checked and then read along that column. . That is, the display position is moved along the column direction (vertical direction) so as not to cause a shift in the horizontal direction. On the other hand, if it is determined in step S804 that the first column is displayed, the process proceeds to step S805.

  In step S805, the display position movement processing unit 204 determines that the display position movement suppression method is bidirectional suppression. If both the first row and the first column are headers, or if there is no header in either the first row or the first column, swipe to move the display position along either the row or the column. Is assumed. By comparing the horizontal direction and vertical direction components with respect to the movement direction of the display position instructed by the swipe operation (step S611), and moving only in the larger direction, the direction perpendicular to the direction intended by the user is obtained. This is to prevent the deviation from occurring. Further, according to this flowchart, the process of step S805 is executed also in the following case. That is, when there is a header only in the first row and the header is displayed on the touch UI 104, and when there is a header only in the first column and the header is displayed on the touch UI 104 This is the case. When the header exists only in the first line, the display position is moved along the line as described above. However, when the header of the first line is displayed, the display position is moved in the vertical direction sequentially. It is assumed that the contents of each header are referred to. Therefore, even when the header exists only in the first row, the display position can be moved along the row direction or the column direction when the header is displayed. The same applies to the case where the header exists only in the first column.

  Next, the graphic attribute object movement suppression determination process shown in S608 of FIG. 6 in the present embodiment will be described with reference to FIGS. FIG. 9 is a flowchart illustrating a procedure of the graphic attribute object movement suppression determination process. This flowchart is realized by the CPU 105 executing the application program as the display position movement processing unit 204. FIG. 10 is a diagram illustrating an example of a bar graph or a band graph as a graphic attribute object that is the target of this processing.

  First, in step S900, the display position movement processing unit 204 acquires graph information. The graph information is information indicating the type of graph and is included in the application image data. Alternatively, the graph information generated by analyzing the application image data may be acquired. For example, graph information can be acquired by vectorizing an object by a known method.

  In step S <b> 901, the display position movement processing unit 204 determines whether or not the graphic attribute object to be processed is a bar graph. If the graph information is acquired in step S900 and the information indicates that it is a bar graph, the process proceeds to step S902, and if not, the process proceeds to step S904.

  In step S902, the display position movement processing unit 204 acquires the direction of the bar graph. The direction of the graph is included in the graph information. Alternatively, it can be determined from the shape of the graph bar and the position of the axis. For example, in the case of the bar graph 1000 in FIG. 10A, the sum of the horizontal widths of the graph bars is larger than the sum of the vertical widths. The vertical axis exists at the left end of the graph. When referring to such a bar graph with the touch UI 104 of a small display area, it is assumed that the label on the side of the vertical axis is confirmed and the display position is moved by swiping the graph bar horizontally along the graph bar. The Therefore, in this case, the direction of the bar graph can be determined as the horizontal direction. In step S902, the display position movement processing unit 204 acquires the graph direction in this way.

  In step S903, the display position movement processing unit 204 determines the direction of the graph acquired in step S902. If it is determined that the direction of the graph is the horizontal direction, the process proceeds to step S906, and it is determined that only the vertical direction is suppressed, similarly to step S702 illustrated in FIG. On the other hand, when it is determined that the direction of the graph is the vertical direction, the process proceeds to step S907, and similarly to step S703 illustrated in FIG.

  In step S904, the display position movement processing unit 204 determines whether or not the graphic attribute object that is the target of this processing is a band graph. When the graph information is acquired in step S900 and the information indicates that it is a band graph, it is determined to suppress both directions as in step S805 illustrated in FIG. For example, as in the band graph 1001 in FIG. 10B, the band graph has a configuration ratio in each graph bar connected by a dotted line between the graph bars, and the user compares the graph bars while comparing the graph bars. Reference is assumed. Therefore, in the case of a band graph, it is considered that the display position may be moved along the graph direction like a bar graph and the display position may be moved along the axial direction. Therefore, it is determined to suppress both directions, the first swipe event is determined (S611), and the suppression direction is determined.

  Next, the movement range restriction process shown in step S619 of FIG. 6 will be described using FIG. The movement range restriction process is a process for preferably correcting the display position in the partial area display mode. FIG. 11 is a flowchart showing the procedure of the movement range restriction process. This flowchart is realized by the CPU 105 executing the application program as the display position movement processing unit 204.

  First, the partial display mode will be described with reference to FIGS. The portable information terminal 100 has a page display mode suitable for displaying the entire page as shown in FIG. 5 and a partial area display mode suitable for displaying each object in the page in an enlarged manner as shown in FIG. Can have two display modes. In the present embodiment, the page display mode is immediately after the mobile image terminal 100 receives the application image data. As shown in FIG. 12, the partial area display mode is a display mode for controlling the display magnification and start point of the page 500 so that each object in the page 500 is displayed in a large size. FIG. 12 shows a screen displayed when the object 504 is selected as an object to be enlarged. Further, in this embodiment, as shown in FIG. 12, the translucent mask 1201 is set to the content of the page 500 so that the area other than the object to be enlarged (object 504 in this case) is displayed in translucent gray. Display overlaid on top. By displaying such a semi-transparent mask in an overlapping manner, objects other than the target object are displayed darkly, so that the target object is highlighted and the user can easily recognize the object to be displayed.

  In FIG. 12, a mode switching button 501 is a button for switching the display mode between the page display mode and the “partial area display mode”. The display mode processing unit 203 executes mode switching processing in response to an instruction to the mode switching button 501.

  The next button 502 is used to display the next object from the currently displayed objects in the partial area display mode. The display mode processing unit 203 selects the next object in response to an instruction to the next button 502.

  The previous button 503 is used to display the previous object from the currently displayed object in the partial area display mode. The display mode processing unit 203 selects the previous object in response to an instruction to the previous button 503.

  When the display mode is the page display mode, the display mode processing unit 203 can control the next button 502 and the previous button 503 not to be instructed.

  FIG. 11 illustrates a process for correcting the display position suitably when such a partial area display mode is used.

  In step S1100, the display position movement processing unit 204 acquires the current display mode, and determines whether it is the partial area display mode. If the display mode is the partial area display mode, the process proceeds to step S1101, and if the display mode is the page display mode, the process ends without performing anything.

  In step S <b> 1101, the display position movement processing unit 204 determines whether the width of the currently read object when displayed at the display magnification of the current page is larger than the screen width of the touch UI 104. At this time, if the width of the object is larger than the screen width of the touch UI, the process proceeds to step S1102, and if not, the process proceeds to step S1104.

  In step S <b> 1102, the display position movement processing unit 204 determines whether the left end or right end of the object has moved within the screen of the touch UI 104. As a result, if it is determined that the left end or right end of the object has moved into the screen of the touch UI, the process proceeds to step S1103, and if not, the process proceeds to step S1106.

  In step S <b> 1103, the display position movement processing unit 204 corrects the X coordinate of the start point of the page, moves the left end or right end of the object moved within the screen to the end of the screen of the touch UI 104, and returns it. This is to increase the area where the object is displayed as much as possible even when the width of the object does not fit within the screen width of the touch UI.

  In step S <b> 1104, the display position movement processing unit 204 determines whether the left end or right end of the object has moved outside the screen of the touch UI 104. As a result, when it is determined that the left end or the right end of the object is outside the screen of the touch UI 104, the process proceeds to step S1105. Otherwise, the process proceeds to step S1106.

  In step S1105, the display position movement processing unit 204 corrects the X coordinate of the start point of the page, moves the left end or right end of the object to the end of the screen, and returns it. This is because the entire width of the object fits within the screen width of the touch UI so that the entire object is displayed.

  In step S <b> 1106, the display position movement processing unit 204 determines whether the height of the currently read object when displayed at the display magnification of the current page is greater than the height of the screen of the touch UI 104. At this time, if the height of the object is larger than the screen height of the touch UI, the process proceeds to step S1108; otherwise, the process proceeds to step S1109.

  In step S <b> 1107, the display position movement processing unit 204 determines whether the upper end or lower end of the object has moved within the screen of the touch UI 104 when the display position of the page including the object is moved according to the movement distance of the swipe event. To do. As a result, if it is determined that the upper or lower end of the object is within the touch UI screen, the process proceeds to step S1108; otherwise, the process ends.

  In step S1108, the display position movement processing unit 204 corrects the Y coordinate of the start point of the page, moves the upper end or lower end of the object moved within the screen back to the end of the screen, and displays the object as much as possible. So that

  In step S1109, the display position movement processing unit 204 determines whether the upper end or lower end of the object has moved outside the screen of the touch UI. If it is determined that the upper end or lower end of the object has moved outside the screen of the touch UI, the process proceeds to step S1110, and if not, the process ends.

  In step S1110, the display position movement processing unit 204 corrects the Y coordinate of the start point of the page and moves the upper end or lower end of the object back to the screen so that the entire object is displayed.

  Thus, by limiting the movement range of the object, the user can easily identify the end of the object.

  Next, display contents on the touch UI 104 formed by the display position moving process will be described with reference to FIGS. 13 and 14. FIG. 13 and FIG. 14 are screen diagrams illustrating display examples of the touch UI 104 of the portable information terminal 100.

  FIG. 13A is a screen when the display of the page display mode of the page 500 shown in FIG. 5 is enlarged. The enlarged display can be made by a pinch-out operation. FIG. 13B is a screen when the enlarged display is performed in the partial area display mode of the object 504 shown in FIG. In FIG. 13A, as shown, an object 504, an object 507, and an object 508 are displayed, but the object 504 has the largest area ratio. FIG. 13B shows a partial area display mode in which the object 504 is displayed in an enlarged manner. That is, in both cases of FIG. 13A and FIG. 13B, the reference object determined in step S602 of FIG. The object 504 is a character attribute whose writing direction is horizontal writing. Therefore, when the user performs a swipe operation on the touch UI 104 when the screen is displayed, the portable information terminal 100 suppresses the movement of the display position in the vertical direction and performs only in the horizontal direction. For example, it is assumed that the user tries to read an object 504 that is a character attribute and is written horizontally along the assembly direction by a swipe operation. At this time, even if the swipe operation locus (slid from the arrow start point to the arrow end point) is shown unintentionally, the display position does not move vertically. It moves only in the horizontal direction. However, when a swipe operation having a movement amount of the vertical direction component exceeding the release threshold is performed as indicated by an arrow 1302, a vertical movement instruction is intentionally performed. The display position is also moved in the direction. On the other hand, in the case where the reference object is an object having a character attribute with a vertical writing direction such as the object 505, the movement of the display position in response to the swipe operation as indicated by the arrow 1301 is suppressed in the horizontal direction and the vertical direction. Only made. It should be noted that the arrows 1301 and 1302 merely show the trajectory of the swipe operation and are not displayed on the screen.

  In FIG. 13A, reference numeral 1303 is a horizontal scroll bar, and reference numeral 1304 is a vertical scroll bar. In the case of FIG. 13A, in order to suppress the movement of the display area in the vertical direction, the portable information terminal 100 displays the vertical scroll bar 1304 in a color with higher transparency than the horizontal scroll bar 1303. indicate. This suggests that the movement of the display position in the vertical direction is suppressed.

  Further, in the partial area display mode of FIG. 13B, an example is shown in which the horizontal scroll bar 1303 is displayed and the vertical scroll bar is not displayed, but the vertical scroll bar is displayed. May be.

  FIG. 14A shows a screen when the object 507 shown in FIG. 5 is enlarged and displayed in the partial area display mode. The following description is the same even when the page display mode is enlarged and displayed. The object 507 is a table attribute and has a header in the first row and first column as shown in the figure. Therefore, when the user performs a swipe operation on the touch UI 104 when the screen is displayed in FIG. 14A, either the horizontal component or the vertical component of the movement amount of the first swipe event caused thereby is selected. Suppresses movement in one direction. Then, the display position is moved only in the other direction. As an example, when the first swipe event is indicated by an arrow 1400, when the horizontal component (arrow 1401) is compared with the vertical component (arrow 1402), the horizontal component is larger as illustrated. Therefore, in this case, the display position is moved only in the horizontal direction according to the movement amount of the horizontal component. For example, when the user is paying attention to a certain row header and trying to read the value of each column of the row, even if the user unintentionally performs a swipe operation like the arrow 1400, the vertical direction shifts. Does not occur. Note that when paying attention to a column header and trying to read the value of each row of the column, the user may perform a swipe operation in which the vertical component is larger than the horizontal component. Thereby, the movement in the horizontal direction can be suppressed and the display position can be moved only in the vertical direction. If the user performs a touch release operation, the suppression in the vertical direction or the horizontal direction is canceled, and the suppression method is determined again according to the first swipe event of the next swipe operation. Therefore, each time the user can read in the row direction or read in the column direction, the user can operate from different viewpoints.

  When the reference object is a table attribute object that has neither a row header nor a column header, the portable information terminal 100 suppresses the movement of the display position in the same manner as the object 507.

  When the reference object is a table attribute object having only a row header, the portable information terminal 100 suppresses the movement of the display position in the vertical direction and performs only in the horizontal direction as in the case of the object 504. . However, when the row header is displayed in the display area of the touch UI 104, the portable information terminal 100 suppresses the movement of the display position similarly to the object 507.

  When the reference object is a table attribute object having only a column header, the portable information terminal 100 suppresses the movement of the display position in the horizontal direction and performs only in the vertical direction as in the case of the object 505. However, when the column header is displayed in the display area of the touch UI 104, the portable information terminal 100 suppresses the movement of the display position as with the object 507.

  FIG. 14B shows a screen when the object 509 shown in FIG. 5 is enlarged and displayed in the partial area display mode. The following description is the same even when the page display mode is enlarged and displayed. Since the object 509 is a photographic attribute object, even if the user performs a swipe operation on the touch UI 104 when the screen is displayed in FIG. 14B, no suppression is performed in any direction. The user can display a desired portion in the photograph by a swipe operation. At that time, the portable information terminal 100 does not unnecessarily suppress the movement direction.

  In the case of FIG. 14A, when the user touches the touch UI 104, it is not yet determined in which direction the movement of the display position is suppressed. Therefore, as shown in the figure, both the horizontal scroll bar 1303 and the vertical scroll bar 1304 may be displayed in a color with low transparency (opaque). When the user performs a swipe operation by sliding his / her finger from the touched state, the portable information terminal 100 suppresses movement of the display area in either the horizontal direction or the vertical direction in response to the first swipe event. At this time, the scroll bar in this direction is displayed in a color with high transparency, like the vertical scroll bar 1304 in FIG. In FIG. 14B, since the movement of the display area is not suppressed in any direction, both the horizontal scroll bar 1303 and the vertical scroll bar 1304 are always displayed in a color with low transparency (opaque). .

  FIG. 14C shows a screen when the object 508 shown in FIG. 5 is enlarged and displayed in the partial area display mode. The following description is the same even when the page display mode is enlarged and displayed. An object 509 is an object that has a graphic attribute and is a bar graph. The graph direction is the horizontal direction. Therefore, when the user performs a swipe operation on the touch UI 104 when the screen is displayed in FIG. 14C, the portable information terminal 100 moves the display position in the same way as the object 504. Suppress movement. When the reference object has a graphic attribute in which the graph direction is a vertical bar graph, the movement of the display position is suppressed as in the case of the object 505. When the reference object is a band graph, the movement of the display position is suppressed as in the case of the object 507.

  As described above, according to the present embodiment, the movement of the display position can be suppressed according to the attribute of the object to be displayed. Since the movement of the display position in consideration of the characteristics of the object can be provided, even a display device with a small screen such as a portable terminal can appropriately view a document.

  In this embodiment, the swipe operation is terminated when the touch release event is received. However, the swipe operation is terminated after a certain period of time has elapsed since the touch release event was received using the timer 113. You may make it do. Step S621 can be executed after a predetermined time has elapsed. Also, within a certain period, after receiving the touch press event again, the swipe operation can be continued. When the movement direction of the display position is suppressed, the suppression is released after a certain time has elapsed. Alternatively, even if no touch release event has been received, if a swipe operation has not been performed for a certain period of time (no swipe event is received, or even if it is received, the movement amount is very small below a predetermined threshold), step S621 is performed. You may make it perform. These fixed periods may be defined according to the attributes of the reference object.

  Further, the release threshold value may be defined according to the attribute of the reference object.

  Furthermore, the following may be considered as a condition for suppressing the movement of the display position in the horizontal (vertical) direction. By comparing the size of the rectangular block of the reference object in the horizontal (vertical) direction with the size of the display area of the touch UI 104 in the horizontal (vertical) direction, it may be considered that the ratio is a certain ratio or more. That is, when the maximum amount of movement of the display position is not so large, the movement direction is not suppressed.

  In the present embodiment, in the case of bi-directional suppression, the first swipe event after reception of a touch press event is determined to determine whether to suppress the horizontal direction or the vertical direction. However, it may be the first several times instead of the first time, and the magnitude components may be compared after adding the horizontal component and vertical component of the swipe event corresponding to the number of times.

  In the first embodiment, when the swipe operation is performed, the example in which the movement of the display position is suppressed according to the attribute of the object to be displayed (reference object) is shown. However, if the finger cannot be moved in the horizontal direction or the vertical direction with high accuracy by the initial movement of the swipe operation, there is a possibility that the movement is different from the intended one. In the present embodiment, an example in which the movement of the display position is suppressed according to the attribute of the object to be displayed on condition that a specific operation has been performed. This is particularly useful in usage scenes where the display device cannot be held properly. As a specific operation, a swipe operation in a true horizontal direction or a swipe operation in a true vertical direction, which is an error range within a threshold, will be described as an example.

  With reference to FIG. 15, display position movement processing in the present embodiment will be described. FIG. 15 is a flowchart showing the procedure of display position movement processing in the present embodiment. This flowchart is realized by the CPU 105 executing the application program as the display position movement processing unit 204. The display position movement processing unit 204 detects a touch operation, a swipe operation, or a touch release operation via the touch UI 104, and starts this processing.

  Since this process has many similarities to the process shown in FIG. 6 of the first embodiment, only steps S1500 to S1503 which are different points will be described here.

  In step S1500, the display position movement processing unit 204 determines whether or not a first swipe event has been received. If it is determined that the first swipe event has been received, the process proceeds to step S1501, and if not, the process proceeds to step S1503.

  In step S1501, the display position movement processing unit 204 vector-decomposes the movement amount included in the received swipe event into horizontal and vertical components based on the latest and previous touch coordinate positions that are also included in the swipe event. . Then, it is determined whether or not the component in the suppression direction is within a predetermined threshold (suppression threshold) in advance. This suppression threshold value may be determined as, for example, a value that is 1/5 of the horizontal / vertical width of the display area of the touch UI 104. A value that can easily absorb a vertical direction with respect to the horizontal direction or an input error in the horizontal direction with respect to the vertical direction that occurs even though the user intentionally performs a swipe operation in the horizontal direction or the vertical direction is preferable. If the component in the suppression direction is smaller than the suppression threshold, the process proceeds to step S1502, and if not, the process proceeds to step S1503.

  In step S1502, the display position movement processing unit 204 determines to suppress the movement of the display position. Then, the RAM 111 is stored and managed to the effect that the suppression has been determined. Based on the determination in step S1501, it can be interpreted that the user intentionally moves the display position in the true horizontal direction or the true vertical direction. In response to this, it is decided to suppress the movement of the display position.

  In step S1503, the display position movement processing unit 204 determines whether to suppress the movement of the display position. This is done depending on whether or not it is determined in step S1502 that the RAM 111 has been determined to be suppressed. If it is determined to be suppressed, the process shown in step S617 of FIG. 6 is executed. That is, the page start point is moved according to the suppression method, and the display position is moved. Otherwise, the process shown in step S618 of FIG. 6 is executed. That is, the page start point is moved and the display position is moved according to the content of the swipe event.

  As described above, according to the present embodiment, it is possible to suppress the movement of the display position according to the attribute of the object to be displayed on the condition that a specific operation has been performed. According to the second embodiment, it is possible to reduce inconvenience that the suppression is executed when unnecessary.

  As the “specific operation”, other methods such as displaying an operation button and detecting an instruction to the operation button other than the method shown in the present embodiment may be used.

  Moreover, you may comprise so that a user can be shown to which direction a movement suppression of a display position can be performed according to a reference | standard object. For example, when the display position movement processing unit 204 receives a double tap event, the display position movement processing unit 204 determines a reference object, and executes Step S604, Step S606, and Step S608. The display of the touch UI 104 is updated according to the method for suppressing the movement of the display position determined in this way. For example, as shown in FIG. 16, when the movement of the display position can be suppressed in the horizontal direction, the mark 1600 is displayed. When the movement of the display position can be suppressed in the vertical direction, the mark 1601 is displayed. Note that the mark 1600 and the mark 1601 show examples of display components that present the direction of movement suppression to the user depending on the display position, but an icon (display component) that indicates the direction of movement suppression is displayed on the mark itself. You may prepare.

  In this embodiment, in step S1500, the first swipe event after receiving the touch press event is determined, and it is determined whether or not to perform the suppression. However, instead of the first time, the first few swipe events may be determined, and the horizontal components and vertical components of the swipe events corresponding to the number of times may be added, and the magnitudes may be compared.

<Other examples>
In this embodiment, an example using a touch panel display has been described. However, the present invention is not limited to a touch panel display. The present invention is also applied to a device that can simultaneously move in the vertical direction and the horizontal direction when moving (scrolling) the display position in the page, such as a mouse or joystick having a trackball. Is possible.

  The present invention can also be realized by executing the following processing. That is, software (program) that realizes the functions of the above-described embodiments is supplied to a system or apparatus via a network or various storage media, and a computer (or CPU, MPU, or the like) of the system or apparatus reads the program. It is a process to be executed.

Claims (16)

  A display control apparatus comprising: control means for controlling movement of a display position of an image indicated by the image data based on an attribute of an object included in the image data.   The display control apparatus according to claim 1, wherein the control unit performs control to suppress movement of the display position in a horizontal direction or a vertical direction.   The display control apparatus according to claim 1, wherein the control unit controls movement of a display position of an image corresponding to the object.   The display control apparatus according to claim 1, wherein the control unit controls movement of the display position in accordance with a swipe operation. A determination unit configured to determine an attribute of the display target object included in the image data;
The control means suppresses the movement of the display position in the direction perpendicular to the direction of character combination when the determination means determines that the attribute of the object to be displayed is a character attribute. The display control apparatus as described in any one of Claim 1 to 4. A determination unit configured to determine an attribute of the display target object included in the image data;
The control unit suppresses movement of a display position in a horizontal direction or a vertical direction when the determination unit determines that the attribute of the object to be displayed is a table attribute. 5. The display control device according to any one of 4.   When the determining means determines that the table attribute object has a row header and no column header, the control means moves the display position in the vertical direction with respect to the table attribute object. The display control apparatus according to claim 6, wherein only display is suppressed.   The control means suppresses movement of a display position in a horizontal direction or a vertical direction with respect to the table attribute object when the determination means determines that the display area includes a row header. Item 8. The display control device according to Item 7.   When the determining means determines that the table attribute object has a column header and no row header, the control means moves the display position in the horizontal direction with respect to the table attribute object. The display control apparatus according to claim 6, wherein only display is suppressed.   When the determination unit determines that the table attribute object includes a column header in the display area, the control unit suppresses movement of the display position in the horizontal direction or the vertical direction with respect to the table attribute object. The display control apparatus according to claim 9. A determination unit configured to determine an attribute of the display target object included in the image data;
When the determination unit determines that the attribute of the display target object is an attribute other than a character attribute, a graphic attribute, and a table attribute, the control unit does not suppress the movement of the display position in any direction. The display control apparatus according to claim 1, wherein: And further comprising detection means for detecting an operation for instructing execution of control of movement of the display position by the control means,
The display control apparatus according to claim 1, wherein the control unit performs the control when detected by the detection unit.   13. The display unit according to claim 1, further comprising a display unit that displays a display component indicating a direction in which the movement of the display position by the control unit is suppressed and a display component indicating a direction in which the suppression is not performed. The display control apparatus according to any one of the above. An input means for inputting image data including a plurality of objects;
Display means for displaying an image indicated by the image data input by the input means;
A display control device having detection means for detecting a swipe operation on an image corresponding to the object displayed by the display means,
The direction of movement of the display position of the image corresponding to the object displayed on the display unit, which is performed in response to the detection of the swipe operation by the detection unit, differs depending on the type of the object. Display control device.   A display control method comprising a control step of controlling movement of a display position of an image indicated by the image data based on an attribute of an object included in the image data.   The program for functioning a computer as a display control apparatus as described in any one of Claims 1-14.